EP 0378858 B1 19960612 - Process for the preparation of branched thermoplastic polycarbonates
Title (en)
Process for the preparation of branched thermoplastic polycarbonates
Title (de)
Verfahren zur Herstellung von verzweigten thermoplastischen Polycarbonaten
Title (fr)
Procédé pour préparation des polycarbonates thermoplastiques ramifiés
Publication
Application
Priority
US 29738089 A 19890117
Abstract (en)
[origin: EP0378858A2] Thermoplastic branched polycarbonate resins are prepared by equilibration of linear aromatic polycarbonate with polyhydric phenol having more than two hydroxy groups in the presence of a catalyst.
IPC 1-7
IPC 8 full level
C08G 64/00 (2006.01); C08G 64/14 (2006.01); C08G 64/20 (2006.01); C08G 64/42 (2006.01)
CPC (source: EP US)
C08G 64/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
US 4888400 A 19891219; DE 68926665 D1 19960718; DE 68926665 T2 19961219; EP 0378858 A2 19900725; EP 0378858 A3 19920212; EP 0378858 B1 19960612; JP H02245023 A 19900928; JP H07116285 B2 19951213
DOCDB simple family (application)
US 29738089 A 19890117; DE 68926665 T 19891228; EP 89124050 A 19891228; JP 652290 A 19900117